Any of the galaxy range that apple want to ban would only get banned in America and wouldn't affect users in the UK as the judgement is only valid in America. Apple tried to do the same in other countries but favour was awarded to samsung in every country except america, where EGHAD, apple is on home town turf. Not surprising really that the only court willing to award American apple the favour is an American court.

One of the solutions I've come across is to take it back to GB at which time the S2 unlock app might work. Then, apparently, I can upgrade to ICS. But if I take the further upgrade it may again lock my unlocked phone, and again - no clue as to who it's locked with.